TY  - RPRT
TI  - Geologic map of Great Sand Dunes National Park, Colorado
AU  - Richard F. Madole
AU  - D. Paco VanSistine
AU  - Joseph H. Romig
PY  - 2016
DO  - 10.3133/sim3362
UR  - https://pubs.usgs.gov/publication/sim3362
ID  - sim3362
ER  -